And there was a dramatic upheaval in the earth today on a small island off the coast of washington state. Residents say it began with a mysterious sound like thunder, and then the earth seemed to crack open. Abc's neal karlinsky is there. Reporter: It was just before 4:00 in the morning when the slide hit with such force homeowners thought it must be a massive earthquake. I looked out and noticed that we had no more trees blocking the view and half the yard of the gone. Reporter: One home was swept away and three dozen are evacuated, but remarkably no one was hurt. This is what it looked like before and now. People below had to be taken out by boat, some with just a handful of their possessions. These houses above are in danger. You can see where it dropped off. They're evacuating the whole area. They're asking us to leave. Dalia lived above the slide and was told to grab what she could and get out. I was petified. You're missing 250 feet of you lawn. Reporter: Her deck which now overlooks the massive landslide is occasionally shaking. I have wonderful friends who came together and helped me out. So I'm blessed. Reporter: The island community north of seattle is prone to landslides. In fact, geologists, were examine this very bluff just one day earlier. Tonight neighbors are just praying the hillside stabilizes before their homes go sliding off as well. New we head overseas to north korea, which has made

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Seven cars carrying chemicals of off tracks; no threat reported to public health.

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